Question

Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a) typically have 23 pairs of chromosomes b) are heterozygous for a trait when they carry different alleles c) carry 2 copies of chromosomes d) are homozygous for a trait when they carry different alleles 2. Why are garden peas a good subject for Mendel's experiments? a) garden peas had either or traits b) garden pess could self-pollinate to produce offspring of the same variety c) garden peas were rare and expensive d) garden peas anatomy allowed Mendel to control which plants bred e) garden peas had only two traits that Mendel could observe 3. Mendel's laws a) like all scientific laws, are universally true b) arose from Mendel's observations and calculations of phenotypes of the peas he bred c) are only tru in plants, not in animals because animals reproduce differently than plants d) state rules for how parents pass on genes to offspring 4. Concerning dominance of alleles a) The allese that is overshadowed by the dominant allele is called recessive b) When phenotype of a heterozygote and a dominate homozygote aer the same it is called blended dominance c) In codomiance, both alleles are expressed distinctively in the phenotype d) Sickle cell anemia in humans is an example of incomplete dominance e) All expressions of dominance involve dominant and recessive alleles 5. Mendel's Law of Independent Assortment a) concerns more than one gene b) describes how alleles are distributed to gametes c) required Mendel to examine multiple traits in the same offspring d) explains the distribution of alleles on the same chromosome 6. Mendel's Law of Segregation tells us that a) each parent donates on allele of each gene to the offspring b) a diploid offspring receives one copy of each gene from each parent c) sometimes one parent can contribute more to an offspring's genotype than the other parent d)alleles of one gene will be passed on to offspring independently of the alleles of other genes

Answer 1

1) diploid organisms means they have 2 copies of chromosomes that is for each chromosome there are 2 copies so the answer is c) carry 2 copies of the chromosomes.

2) garden peas are good for generating true breeding population because they self fertilize and produce seeds so the answer is b) garden peas could self pollinate to produce offspring of the same variety.

3) Mendel derived his laws from his observation of the pea plants b) arose from Mendel`s observations and calculations of the phenotypes of the peas he bred.